The topic of this article is one of the biggest problems associated with retaliation under the World Trade Organization dispute settlement procedure - the sequencing issue. Namely, despite very strict, precise, applicable and tractable procedural rules in the World Trade Organization dispute settlement system, one thing has remained unclear and unresolved thus far - the mismatch of articles 21.5 and 22 of the World Trade Organization Dispute Settlement Understanding. A critical reading of these two articles, aside from possible practical problems, is enough to conclude that these two articles must be brought in accordance; otherwise, problems in implementation may arise. More than a decade ago, such a problem occurred, involving important world trade “players” and lasting over a considerable period. In order to explore the aforementioned problem, this article will outline the procedural issues, identify the problem, indicate the substance of the problem and, finally, suggest possible solutions.